Folding bed



s ept. 11, 192s. 1,683,958

I F. CQNHAIM ET AL FOLDING BED Filed April 14. 1922 6 SheetSSheet l Sept. 111,'` 192s.

` F. coNHAlM Erm.

FOLDING BED Filed April 1'4. 1922 6 Sheets-Sheet 3 Sept. ll, 1928.

F. CONHAIM El' AL FOLDING BED Filed April 14. 1922 6 Sheets-Sheet 4 2Q? i [fire/fram A sept 11, 192s.

F. CONHAIM ET AL FOLDING BED l Filed April 14. 1922 e sheets-sheet s Sept. 11, 192s. 1,683,958

F. CONHAIM ET Al.

FOLDING BED Filed April 14. 1922 6 Sheets-Sheet 6 fnl/awww.

Patented Sept. 11,l i928.- y Unirse STATES` PATENT orifice.

EEEE OONHAIM AND LOUIs swENiNGsON, OE CLEVELAND, OHIO, AssreNoEs,` BY DI. EEOT AND M EsNE ASSIGNMENTS, TO OONHAIM PATENTS CORPORATION, OE NEW' YOEK, N. Y., A OOEEOEATION OE NEW YORK.

FOLDING BED.

Application ledfApril 14, '1922. Serial No. 552.649.

This invention relates to foldingbedaand more especially to beds of the type whichare adapted to swing or fold upwardly about a horizontal axis. tis the general purpose and object ot' the inventionto .provide a bed'o'f this' character `with a" particularly eilicient meanstor clamping orlsecuring the' clothing and the mattress to the mattress support, the

said clamping means being preferably operated by the swinging or folding movements ot the bed about thehorizontal axis. Further and more limited objects Ot the invention will appearl hereinafter and will be accomplished and realized in and through the combinations of elements and in the claims hereto annexed.

The invention disclosed herein is a development of and improvement upon the mattress clamping means and the mechanism for Operating the same shown in the patent to Fred. Conhaim No. 1,366,521, issued January 25, i921. l in the drawings orming'part hereof, Fig. 1 represents a longitudinal sectional view through a bed having our invention applied thereto, the particular bed shown herein having its frontend mounted in such manner that the bed as a whole may be swung into a closet; F i2 represents a sectional end ele ration o't the toot portion of the bed, Ashowing our mattress clamp in open or inoperative position.; Figs. 3 and 4 are sectional details showing the mattress clamp in its operative position and indicating the positions of the operating parts in connectionwith mattresses ot'varying thickness; Fig. 5 is a: detail in end elevation and Fig. 6 a detail in side elevation et an operating lever and bracket Jfor the mattress clamp, Fig. V is a sectional elevation of the mounting for the front end of ther thrust member which operates the swinging foot portion of the bed and the mattress cla-mp; Figs. Sand E) are similar views of modifica ions ot the'said mounting; Fig. 10 a detail in plan of the t irust member; Figs. 11,12 and 18 diagrammatic sections illustrating the man-ner inV which the mattress-clamp lever operates the said clamp and Fig. 14 an elevation ot the swinging end of the bed.

The bed shown'herein is ot the type knowny te the trad-e as the ln-AeDor bed, being mounted. at its head upon a adapted to swing upon a vertical axis, whereby' the bed` when in its elevated position, may be moved into and out ot closet, it not being' frame which is Y intended. however7 to limit our vinvention-to beds having such movement.

Describing the'various parts by reference characters, 1 denotes one of the side jambs ot' a doorway having the brackets 2 and 3 to which the bed-carrying frame is pivoted.

This frame comprises generally an upper transverse member 4, a lower transverse member 5, suitable vertical members G and a trame extending horizontally from the lower transverse member and to which the bed is pivoted. Y The members 4, 5, and G, and the said horizontal frame are supported by arms 7. and 8 having verticalftrunnions 9 and 10 mounted in the brackets 2 and 3, respectively. The horizontal `trame comprises'a pair o side members 11 connected at theirl rear portions by atransverse angle iron brace 12. Each side member 11 is provided with: an up wardly extending leg'l?) having a foot brace 14 at its upper end.- 15 denotes an angular member mounted on each leg 13 each member being connected to the side'ot the bottom trame 1G ofthe bed adjacent thereto and nea-r the head thereof and the members 15 being connected by an* angle iron 17, springs 18 connecting said angle iron'and the angle iron 12. The upper corner of each angle mem` ber 15 is provided with a boss 19 cooperating with a. recess in the foot brace 14, to lock the bed in elevated position while the lower corner Ot the said member is pivotally connected to the upper end of a link 2O at 20, the lower end of said link being pivoted to the front of the lower portion .of the leg 13, asindicated at 21.

'The swinging` head 22 ol the'bed is con-y nected by one or more springs 23 with the upper transverse member 4.v

The parts thus far described are such'as are usually employed in the sO-called In-A- Dor bed.

The toot Ot the bed" is provided witha swinging toot portion comprising legs 24 pivotally connected to the bottom of the bed trame, las indicated of transverse said legs.` f

27 denotes the thrust member generally, the same consisting` ofA a bar of inverted T-seetion throughout the major .port-ion of its length and a pair of laterally spaced rear n extensions of said bar,'the bar having atits at 25, there beingv axpairy tubular braces 26 connecting fifi Sil

front end a fork conveniently formed by a lll pair of metal straps 28 secured to opposite sides of the webof the member 27 and spread apart at their front ends and each having an aperture in its front end adapted to receive a trunnion 29 on a sleeve 30 slidably mounted upon a` bolt 31 and secured in any desired adjusted position thereupon by means of nuts 32, 32a mounted upon said bolt. This bolt is mounted in the upper and lower flanges 33LL of a channel-shaped bracket 33, the lower fiange being' provided with a downturned end flange 33b which is engaged by a similar down turned end flange 34 on the lower fiange 34a of an angle member having a vertical flange 34. The vertical web and the bottom flange of the channel member and the' parts 34 and 34a of the angle member receive therebetween the transverse brace l2, the upper end of t-he flange 34 being bent into engagement with the web 33, as indicated at 34", and being secured to such web by a bolt The flanges 33b and 34) are connected, adjacent to their ends, by bolts 35, while the transverse brace l2 is itself braced from the transverse member 5 and the portion 8EL of the bracket 8 by means of a rod 36 having a hook 36a at its front end extending about the parts 5 and 8a, withits rear end projecting through the flanges 331 and 34h, between the bolts 35a, and having a nut 361 applied thereto and bearing against the flange 33h. The construction comprising the parts 28-36b in elusive provides means adj ustably connecting the front end of the thrust brace 27 to its supporting device and for rigidly mounting such supporting device upon the central portion of the cross brace l2. The rear end of the member 27 has connected to the web thereof a pair of straps 37 similar to the straps 28 and eac-h having its rear end flanged, as shown at 37, whereby such end is adapted to bearV against the vertical flange 38a of a ciioss bar 38, being secured to such flange by bolts 39. lThis cross bar is adjustably connected to the brace 27 by means of bolts 37b extending through the vertical web 27 and through .slots 37c in the straps 37. The cross bar is shown as an angle iron, and the brace comprising the parts 27, 28, 37 and 38 is generally T-shaped in plan.

40 denotes a pair of struts interposed between the braces 26, each strut being shown as composed of a front and a rear section connected by bolts 4l, each rear section having a lug 42 projecting rearwardly therefrom and each lug carrying a pin 43 to which the rear end of an arm 44. is connected, the front end of each arm being connected to the vertical flange 38at of the cross member 38 by means of a flange 44a, formed on the front end of each arm, and one or more bolts 45 securing said flanges to the flange 38a. Each of the arms 44 is curved'intermediate of its ends so as to enable the arms, when the foot portion or vlegs 24 are folded through the upward movelment of the bed about its horizontal pivot,

to assume a position substantially in line with the thrust l ar 27, the concavity in each arm 44 receiving the lower cross brace 26-see Figs. 3 and 4. The cross member 38, bar 27 and arms 44 comprise. the thrust member referred to hereinbefore. y

A pair of brackets, indicated generally at 46, are secured to the footy rail 47 of the mattress frame, each bracket having a pair of downwardly and'forwardly extending arms, each bracket also being provided with a slot adapted to receive the vertical branch of said rail and each bracket being also provided with ears 4Ga bearing against said flange, each ear having a slot 46 by means of which each bracket may be adjustably secured to such rail, as by bolts 48. Each bracket 'comprises the downwardly and forwardly extending arms 46c which support at their lower ends a pivot pin 49. At the rear of the foot rail 47, each bracket is provided with a: pair of upwardly extending lugs or ears 46d which support a pivot bolt 50. Pivoted on each bolt 46 is a saddle consisting of a short cross bar 5l and a pair of upwardly extending ears 51a which receive the said bolt. This saddle supports the lower end of one of the curvedY arms 52 of the mattress clamp. The lower end of each arm extends through its saddle 5l, 51a, beneath the bolt 50 and between the `arms 46C, and is provided at its extreme end with an upwardly and rearwardly inc-lined portion 52a, which may be conveniently formed by riveting or otherwise securing to thelower endofsuch arma separate piece of metal. The upper end of each arm 52 is so shaped as to engage the front under surfaceof the top cross bar 24"L of the foot of the bed, the arms 52 being connected by a bar 53.

For the purpose of operating the mattress clamp comprising the parts 5l-53 inclusive, through the operation of folding the bed upwardly about its horizontal axis, the following construction is provided:

Each ofthe curved arms 44 is provided with a pin 44b which is adapted to enter a vertical slot 54'"L in the lower end of each of a. pair of lever arms 54,-each arm 44 passing between the lower ends of the pair of lever arms cooperating therewith. Above' the slots 54a, the arms 54 are deflected outwardly, as shown at 54h, thus increasing the distance between the upper portions of' said arms, the upper portions being spaced apart a sufficient distance to bring them in proximity to the arms 46c of their cooperating brackets. The upper end of each arm 54 is generally triangular in shape, each arm having an angular portion 54C projecting forwardly or toward the head of the bed. A pin 55 connects the front anguiar portions 54C of each pair of arms. Links 56 are mounted each at one enden opposits ends of the pins 55 (outside of the arms 54) the other ends of the links being mounted upon the pins 49. Each of the last nien- All tioned pins extendsthrough arcuate slots 54d in the upper portions of the arms 54, each slot being described about its pin 55 as a center, whereby the lever arms may pivot about the pins 55 as movable or Heating centers car` ried by the movable ends of the links, without interference with the pins49 which pivotally anchor the opposite ends of said links. `57 denotes a roller mounted between the upper ends oi' each pair of arms 54, above the pins 55. vEach roller is mounted upon a pin 58, the ends of which pins are mounted in arcuate slots 54e at the upper ends of the arms 54.

A helical tension spring 59 connects each pin 49 with a pin G0 which is mounted in the varms 54 above the slots 54n and tends to hold each lever elevated with each pin 4S) at the bottom o'tV the slots 54d cooperating therewith.

The purpose of thearms 44, arms the construction embracing 54, and their connections with the arms 52. is to enable the mattress clamp to be operated with a minimum strain upon the parts and in the most erhcient manner and Awith a minimum ot e'llfort upon the part ofthe operator. The manner in which this result is accomplished will be explained here- -ina'fter in connection with the diagrammatic views shown in -F-igs.- lit-13.

ln applying our clamp-operating means to a bed of the type shown herein, with the bed in its lowered position, the arms 44 are connected to their pivots 43, the nuts on the bolts 37" being slack. This will enable the folding legs or Yroot portion to be set to a vertical rposition when the bed is so lowered. The nuts will then be set up, leaving the trimnion sleeve 3G tree on the bolt -Si-with the nuts 32 and 32 at the bottom and the top ot said bolt. The be-d is then swung upwardly about the pivots l19 aiter which the nuts will be screwed into engagement with said sleeve. T he adjustment which is obtainable by virtue of the connections 27, 37, 37b and 37 and by virtue ot the mounting ofv the -trunnion sleeve adapts our thrust bar Jrior all oroinary variations occurring in the same types of beds and insures proper positioning oit-they swinging foot portion. f n the operation of the mattress clamp of the general type shownherein, and more particularly in the Conhaim patent referred to hereinbetore, the maximum i'oice necessary to operate said clamp must befexerted atthe beginning oi' the movement of the same, it being understood, ot course, that consider-- able 'resistance will be offered to the iinal movement of the clamp byv virtue vof its engagement with the bedL clothing and the thickness of the mattress'. come, or at leastwto greatly minimize, this initial operating effort, the peculiar construction oflithe'lever arms and the peculiar manner oi mounting` the same are provided. As-thefrear end oic the bed moves rupwardly In order to overf employed with Fig. 7.

about its horizontal pivot, the legs 24 are pulled forwardly about Ytheir pivots, caus ing a corresponding movement of the lower ends of the arms 54 about their pivots 55. By reason of the links 56 and the spring suspension provided by the pins 49 and GO and the spring 59, the levers comprising the arms 54 and the 'upper extensions thereof drop, bringing the rollers 57 downwardly, as in dicatedin Fig. l2, thus causing the said rollers to act nearly at right angles to the inclined surfaces 52a on the lower ends of their respective arms 52 as the -arms 54 pivot about their pins 55.l Consequently, vthe `initial movement ol the lever arms causes the application olt the operating` force in the most eilfective manner, with theresult that .a minimum eilort on the part ot the. operator is required to instituter this vmovement andv a` minimum strain is exertedupon the parts which cooperate with the said arms and especially upon the rail 47 which supports the same. This pivoting movement ot the lever arms 54 about the movably supported pivot pins 55 causes the upper ens oit-the lever arms to move rearwardly and downward, 'as the lower ends ot the arms swing forwardly, this downward movement oitl the lever arms 54 being resisted by the springs 59 :which suspend the leverarms l'rom the pins 49.y

rlChe lever larms y swing about their movable pivots 55 until, when the bed is in its upward position, the parts will have assumed the positions shown diagrammatically in` Fig. 13,

`and-. more fully in Figs. 3 and 4-Fig. 3 showing the positions of the parts where theL clainpsoperate in conjunction with a thick mattress and 4 the positions of the parts when the Aclamp operates upon a relatively thin mattress, it being noted that ythe springs 59 and the slots 54 accommodate this variation in thickness.

The slots 54e in which the rollers are mounted'accommodate variations whichl may occur in the curvatures and lengths of the arms 52 and in thepositions of thecross bars 24a and enable the upper ends of the arms to rest against such cross variations. The thrust due to the operation of' the mattress clamp is comparati wely light and is takenl by the mattress rail 47, dispensing with the necessity for trussing the said rail or the cross rails 26. Furthermore, the

operating means forthe mattress clamp are light'in weight, simple in construction, and comparatively inexpensive of production.

ln Figs. 8 and 9 are shown modifications of the mounting for the trentr end ot the' thrust member 27. In Fig. 8, the same bracket construction is shown as in Fig. 7 and mounted in the same manner on the cross brace 12, and the' corresponding parts designated by the same reference numerals as are :The pin 31a on which the trunnion sleeve 8O is -mounted `is un- Slt bars irrespective ot' such this case is a single channel casting or torging havin a vertical web 62 with upper and lower flanges 62a and G2 in which thc pin 3l is mounted, the lower 'liange being screwed or bolted tov the floor, as indicated at 62C. The bracket is termed with a base flange 62d additional to the flange (32h, adapted to rest upon the base iiange G3 ot an angle iron cross bar, as well as with a bracing rib 62e; also with end bosses 62f vach supporting` a clamping screw 64, said screws being adapted to enO'age the vertical flange 68 oi: said cross bar, which is received within a slot- GQ" provided therefor in said bracket.

Having thus described our invention, what we claim is:

l. The combination, with a bed and means supporting the same for movement about a horizontal axis, the swinging end ot the bed being provided with a pivoted lower section, of athrustmember pivoted at one end adjacent to such axis and pivotally connected at its opposite end to such lower section, a mattress-clamping arm pivotally supported intermediate oft its ends trom the swinging end portion of said bed, a lever connected directly to said thrust member and having a portion adapted to engage said mattressclamping arm, and a fulcrnm `tor said lever nicvably supported by the swinging end oi said bed.

2. rlhe combination, with a bed and means supporting the same for movement about a horizontal axis, the swinging` end of the bed being provided with a pivoted lower section, ot' a thrust member pivoted at one end adj acent to such axis and pivotally connected at its opposite end to such lower section, a mat-Y tress-clan'iping arm pivotally supported intermediate ot' its ends `from the swinging end portion of said bed, a lever adapted to operate upon said arm, means yieldingly supporting said lever for movement in the direction of its length, a laterally oi'li'set Inova-bly supported fulcrum for said lever, and means connecting the said lever directly to the said thrust member for rocking the said lever about said tulcrum. l

3. The combination, with a bed and means supporting the same for movement about a horizontal axis, the swinging` end ot the bed being provided with a pivoted lower section, of a thrust bar pivoted at one end adjacent to such axis and pivotally connected at its oppositeqend to such lower section, a mattress lyconnected with said clamping arm pivotally supported intermediate et its ends from the swinging end portion oi said bed, a lever having one end ,operativethrust bar, a pivot for said lever intermediate of itsfends, one or more links connected with. said pivot, the end of said lever which is opposite the thrust-bar connection being adapted to engage the cooperating end of said arm, the said leverhaving a slot concentric with the said pivot, a pin mounted in said slot and supporting the said link or links, and a spring supporting said lever from said pin. y Y n l. rl`hecombination, with a bed and means supporting the same for movement about a horizontal axis, theswinging end of the bed being provided with a pivoted lower section, ot a thrust bar pivotedat oneend adjacent to such axis, and pivotally connected vat its opposite end to such lower section, a mattress-clamping arm pivot-ally supported intermediate ot its ends from across member on the swinging portion of said bed, a lever, a pin-and-slot connection between said `lever and said thrust bar, said lever having a laterallyofl'set portion and an end opposite'said connection adapted to engage the adjacent end of the said arm, a pivot for said lever, and a link connected with said pivot and pivotally connected to the offset portion of said lever.

5. The combination, with a bed and means supporting the samefor movement about a horizontal axis, the swinging end of said bed being provided with a-lower section movably connected to the upper section, of aV thrust member pivotedat one end adjacent to such axis and pivotally connected at its opposite end to the aforesaid lower section, a mattress frame having a cross bar adjacent the swinging end of said bed, a bracket connected to said cross bar, a mattress clamping arm pivotally supported by said bracket, a lever pivoted intermediate of its ends and having one end directly connected to the saidthrust member and its opposite end adapted to engage the adjacent end of the said arm, the connection between the lever and lthe thrust member permitting relative movement between the said member and lever in the direction of the length of the latter.

6. The combination, with a bedand means supporting the same for movement about a horizontal axis, the swinging end of said bed comprising` a lower section pivoted to an upper section, of a thrust bar pivotally connected adjacent to the said axis at oneend and pivotally connected at its opposite end to said lower section, a mattress-clamping arm pivotally supported intermediate of its ends from said bed,a lever pivoted in operative relation to the operating endof said arm, alost-motion connection between said lever and said bar, and amovably supported pivot for said lever operating tomaintain the line of thrust of the said lever upon the said arm at substantially right angles to the cooperatingsurface otsaid.

afm.

supportingthe saine for horizontal axis, vthe swinging end of said bed comprising a lower section pivoted to an up-r per section, ed adjacent to 'the said axis pivotally connected at its opposite end to said lower section, amattress-clamping arm pivotally supported intermedi ate oit-its endsjfroin said bed, a lever having aslot extendinglongitudinally thereof, a' pivotl pin extending through said slot, a yielding connection between said lever and said pin, one end of saidI lever being slidably connectedto saidthrust bar and the opposite end ofsaid lever cooperating with tlie said mattress clamp tol and pivotally connectedat its opposite end tosaid lower section, a mattress clamping arm pivotally supportedintermediate of its ends' Jfrom said bed, alever having a slot extending longitudinally thereof, a pivot pin extending through said slot, a spring lever from said pin, one endfof said lever being connected to said thrust bar by a pin-andslot connection and thel opposite end of said lever cooperating with the said' mattress clamp to rock the latter aboutits pivot, and-*a link connected at one end` to saidpivot pin and at its opposite end to said lever at a point' remote from the operating portion. of said arm.

9. The combination, ,withA a' bed and means supporting the same for movement about a horizontal axis, of a lower section pivotally connected to the upper section of the swing? ing end of said bed, of a thrust member pivoted at one end adjacent to such axis and connected at its opposite end to the said lower section, a mattress clamp pivoted intermediate of its ends to the swinging portion of said bed, an operating lever adapted to engage the said mattress clamp with one-end to said member, the connecting meansbetween the said lever and the said thrust member permitting relative movement between said member and lever in the direction ofthe length of the lever.

10. The combination, with a bed and means supporting the same for movement about a horizontal axis, the swinging end of said bed comprising a lower section. pivotally connected to an upper section, ot' a thrust bar pivoted at one end adjacent to such axis and having g. air et arias pivotally connected to of a thrust bar pivotally support-k at one end and supporting said' thereof and connected at its other end directly such lower sec-tion, a1 mattressclamp compris# ing apair oi4 curved arms each pivoted-inter- 'mediateot its -ends,a pairofleverseach piv` oted intermediate of its.ends,andeachhaving an operating. portionA adapted" toy engage the. adjacentlend of one of said-curvedfarms,and-al pin-and-sloti connection betweenfeach ofsaid f levers and one ofthe iirst mentionedar-ms,

1l; The combination; witha-bed and'means:

supporting the saineforA movementabout a horizontal axis, the swinging endofsaidbed comprising a lower sectionf pivotallyy connected to an upper section, ofv a thrust bar.. pivoted at one end adjacent tosuch axis andA pivotally connected' at its opposite endto.

the vlower section, a mattress clamp compris-A ing an arm pivoted intermediate of? itszends;` a lever pivoted intermediate of itsends and having an operating 'portion';` adapted to enf gage the adjacent end of' said1arm, avariable connection between saidy lever and saidi bar', and mea-ns yieldingly' supporting; the.I said lever for vvariable Vmovements about its` pivot.

horizontal axis,-the swinging end'of the'bed being provided wth a pivoted: lower section,`

Yof a, thrust bar pivoted at one end adjacent. Y to such axis and pivotally connectedA at its opposite1 end tothe said section, a bracketY sup-ported by the-swinging portionof the' 12. VThecombination, withfaibed andmeanss supporting the same'for movement Aabout a bed, a mattress-clamping arm supportedinetermedi'ate of its ends by said bracket'ya lever comprising an arm having` an angularl liead, a pin in` said angular-head,-alinkaconnectedi to said pin, a pinz mounted! in. said bracket' andl extending: througln the oppositef end-f ofi l said link'and throughan arcuater slot inisaidfv lever arm, a roller carried bysaid'lever ai'm`l andv adapted to engage the. lower: end of the Y mattress-clamping arm, and: a `pin-andslotconnection between the lower end of said lever arm and the thrust bar.

13. The combination, with a bed and means supporting the same vfor movement about a horizontal axis, the swinging end of the bed being provided with a pivoted lower section, of a thrust rbar pivoted at one end adjacent to such axis and pivotally connected at its opposite end to the said section, a bracket supported by the swinging portion of the bed, a mattress-clamping arm supported intermediate vof its ends by said bracket, a lever comprising a pair of arms each having an angular head, a pin connecting corre-y C5 v the lower end of said lever arms 'and the thrust bar, a pin mounted in said lever arms below the second pin and a tension spring connecting the twolast mentioned pins.

14. The combination, with a bed and means supporting the same for movement about a horizontal axis, the swinging end of said bed comprising a lower section pivoted to an upper section, of a thrust bar .pivotally supported adjacent to the said axis and hav- `ingrat its rear end a crossbar adjustably'con-` nected therewith, arms carried by said cross 'bar and pivotally connected to said lower ing its opposite end provided with a pair of laterally spaced arms each pivotally connected 'to rthe said lower section, a pair of mattress clamping arms pivotally supported from a cross member of said bed, a lever for operating each of the last mentionedr arms, and aconnection between each of the last mentioned levers and one of the iirst mentioned. arms.

16.- The combination, with a bed and means supporting the same for movement about a horizontal axis, the swinging end of said bed comprisinga lower section pivoted to' an upper section, of a thrust bar pivotal'ly supported adjacent to the said axis and having a pair of arms adj ustably connected with and constituting an extension of said bar, a pivotal connection between each of said arms and the said lower section of the b ed, a pairV of mattress clamping arms ypivotally supported on a cross member of said bed, a pair' of vlevers eachy pivoted intermediate of "its ends for operating` a mattress clamping arm, a lost-motion connection between each of said levers and a movable support for the pivotal fulcrum of each lever. v Y 1 17.. The combination, with a bedcomprising a mattress frame having end cross bars, and means supporting` the same `for moveg ment about a horizontal axis, the swinging end of the bed comprising a lower section pivotally vsupported from an Vupper section. a bracket carried by the cro-ss bar adjacent Vto such `swinging end, a mattress-clamping arm pivoted, to said bracket, a thrust rod pivotally connected at one end to said lower section and pivotally supported at itsopposite end adj'acentto such axis, anda connection between said rod and saidarm. Y

18. The combination, with a bed comprising a mattress frame having end cross bars. and means supporting the same for' movement about ahorizontal axis, the swinging end of the bed comprising a lower section pivotally supported from an upper section, a

bracket carried by the cross bar adjacent to suchswmgmg end, a mattress-clamping arm pivoted to said bracket, a thrust rod pivotally connected at one'l end to said lower section and pivotally supported fat its opposite end adjacent to such axis, a lever pivoted to said bracket and adapted to operate said arm, and tn-operating connection between said lever and said thrust rod.

In testimony whereof, we hereunto our signatures.

` FRED eoNHAIM.

LOUIS SWENINGSON. 

